From 78dfb05eeb475af7dfff1903f7d2923e5bba74ca Mon Sep 17 00:00:00 2001
From: Ben Meadors <benmmeadors@gmail.com>
Date: Sat, 13 Sep 2025 11:59:50 -0500
Subject: [PATCH] Portduino dynamic alloc

---
 src/mesh/Router.cpp | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/mesh/Router.cpp b/src/mesh/Router.cpp
index b5ae1ec0c..c5eed5180 100644
--- a/src/mesh/Router.cpp
+++ b/src/mesh/Router.cpp
@@ -5,6 +5,7 @@
 #include "MeshService.h"
 #include "NodeDB.h"
 #include "RTC.h"
+
 #include "configuration.h"
 #include "detect/LoRaRadioType.h"
 #include "main.h"
@@ -27,13 +28,24 @@
 
 // I think this is right, one packet for each of the three fifos + one packet being currently assembled for TX or RX
 // And every TX packet might have a retransmission packet or an ack alive at any moment
+
+#ifdef ARCH_PORTDUINO
+// Portduino (native) targets can use dynamic memory pools with runtime-configurable sizes
 #define MAX_PACKETS                                                                                                              \
     (MAX_RX_TOPHONE + MAX_RX_FROMRADIO + 2 * MAX_TX_QUEUE +                                                                      \
      2) // max number of packets which can be in flight (either queued from reception or queued for sending)
 
-static MemoryPool<meshtastic_MeshPacket, MAX_PACKETS> staticPool;
+static MemoryDynamic<meshtastic_MeshPacket> dynamicPool(MAX_PACKETS);
+Allocator<meshtastic_MeshPacket> &packetPool = dynamicPool;
+#else
+// Embedded targets use static memory pools with compile-time constants
+#define MAX_PACKETS_STATIC                                                                                                       \
+    (MAX_RX_TOPHONE + MAX_RX_FROMRADIO + 2 * MAX_TX_QUEUE +                                                                      \
+     2) // max number of packets which can be in flight (either queued from reception or queued for sending)
 
+static MemoryPool<meshtastic_MeshPacket, MAX_PACKETS_STATIC> staticPool;
 Allocator<meshtastic_MeshPacket> &packetPool = staticPool;
+#endif
 
 static uint8_t bytes[MAX_LORA_PAYLOAD_LEN + 1] __attribute__((__aligned__));